Code result
P2817
Pressure Control Solenoid H Performance/Stuck Off
High severity
What it means
Pressure control solenoid H is commanded on but does not produce the expected pressure. Spool stuck closed or hydraulic feed restricted.
Is it safe to drive?
No — stop driving
This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly.
Most likely causes
Solenoid spool stuck in closed position
highOne of the most commonly reported causes for this code — check this first.
Hydraulic feed restricted by debris
mediumA plausible cause — test and verify before replacing parts.
Carbon or debris buildup preventing free movement
lowLess common, but worth ruling out after the more likely causes.
Related help
Get the full diagnosis
Add your vehicle and see step-by-step repair help, recalls, and TSBs in Wrenchify.
Diagnose P2817 freeNo credit card required